Database Develop

Terrible battery live on cyanogen

Since I rooted I've been getting horrid battery life. I used my phone for 10 minutes today texting and the battery life's consumed 7%. This is not good.

Check in your sync to make sure your calendar or contacts ect. aren't stuck trying to sync. This happened to me, and phone was dying in a matter of a few hours.

Mine is like that too I was thinking about switching to Another since I hear that Rom gets better battery life.

There are several existing battery threads. You should ask questions in there.

Hardly used my phone for 40 minutes today and down to half battery life. Can't somebody throw me a bone here?

You could try flashing one of the undervolted kernels from IntersectR or Diet. I noticed it helped a fair bit on the Cyanogen rom. Another option could be to switch to the Enom 1.8.1 rom. I'm currently running the Enom rom with IntersectR hybrid kernel and get fairly good battery life.

I had this too, flash any other kernel and it seems to fix itself. Intersects is a good call.

2000impreza said:
You could try flashing one of the undervolted kernels from IntersectR or Diet. I noticed it helped a fair bit on the Cyanogen rom. Another option could be to switch to the Enom 1.8.1 rom. I'm currently running the Enom rom with IntersectR hybrid kernel and get fairly good battery life.
Click to expand...
Click to collapse
Same here, man

I flashed this kernel:
OC/UV kernel + HTC_Camera Addon for 1.8.1
and this rom:
TheOfficial_Nexus1_v1.8.1_update.zip
from this thread:
http://forum.xda-developers.com/showthread.php?t=614427
Is that the kernel that's being praised for having good battery life?

Macmee said:
I flashed this kernel:
OC/UV kernel + HTC_Camera Addon for 1.8.1
and this rom:
TheOfficial_Nexus1_v1.8.1_update.zip
[/url]
Is that the kernel that's being praised for having good battery life?
Click to expand...
Click to collapse
I'm running this combo, and I get 10x better battery life than on Cyanogen's!

Good to hear. Ill report back with my findings after a few days useage!

I was having battery troubles, but I just charged my phone fully then wiped the battery stats in recovery and have had great improvement.

Is there such thing as a desire ROM that has good battery life for the N1?

sorry, Cyano506 has great battery live... you must be doing something wrong..

yeah I must of installed a cyanogen from a different person...
....hey--wait a minute...

Battery CM 506
..this is not too bad for 506...

Thats what I am using now with the addition of juice defender free which gave me a small but noticeable boost in battery life. These things together gave me the juice to make it through the day without scrimping on my usage, before I had to either scrimp or charge during the day to make it.

rori~ said:
..this is not too bad for 506...
Click to expand...
Click to collapse
well damn. I am currently looking for a new kernel. What are u running? I have a kernel from late January. From what I hear there are several good ones out there with better battery life. I am running 5.0.6 also

I don't understand. Look:
I've hardly even used it :S

since I posted that picture I haven't touched my phone, and here's the difference:

[Q] Cyanogenmod 7.1 Battery Life?

Hello all,
I have seen reports that because the source code for the captivate has not been fully released, some of the processes cannot be put to sleep when they are not being used, and therefore causes bad battery life. I am just about to flash CM 7.1 and am curious to know how the battery life is on the captivate.
All info is greatly appreciated!

LWt mw know what you find out! Just flashed it and my battery goes quicker than my bank account. Please let me know what I can do to help this I like the rom
Jaye

gtabowner said:
LWt mw know what you find out! Just flashed it and my battery goes quicker than my bank account. Please let me know what I can do to help this I like the rom
Jaye
Click to expand...
Click to collapse
Jaye,
This happens frequently when flashing a new ROM, you should try wiping the battery stats or giving the ROM a few days to calibrate with the battery.

Been a week for me and battery life is still horrible. I lose about 25% an hour
Sent from my SGH-I897 using XDA App

ConeyKiller said:
Been a week for me and battery life is still horrible. I lose about 25% an hour
Sent from my SGH-I897 using XDA App
Click to expand...
Click to collapse
You should try a custom kernel like glitch or Neo to see if that will help. I get awesome battery life in miui which is bases of cm7. I find that neo gives me the best battery life.
Sent from my SGH-I896 running MIUI.

Vaanhoot said:
You should try a custom kernel like glitch or Neo to see if that will help. I get awesome battery life in miui which is bases of cm7. I find that neo gives me the best battery life.
Sent from my SGH-I896 running MIUI.
Click to expand...
Click to collapse
What do you think about the Boog Kernel?
http://forum.xda-developers.com/showthread.php?t=1294849
Also, some people must be getting solid battery life, or CM7 wouldn't be as popular as it is. Or is this a known thing with CM7?

rcllcr said:
What do you think about the Boog Kernel?
http://forum.xda-developers.com/showthread.php?t=1294849
Also, some people must be getting solid battery life, or CM7 wouldn't be as popular as it is. Or is this a known thing with CM7?
Click to expand...
Click to collapse
I get better battery life on miui and neo kernel than any samsung rom I have tried. But each phone is different.
Sent from my SGH-I896 running MIUI.

ConeyKiller said:
Been a week for me and battery life is still horrible. I lose about 25% an hour
Sent from my SGH-I897 using XDA App
Click to expand...
Click to collapse
Yeah that's pretty awful. Try doing a battery calibration to see if that helps. It should never go that quick (unless you're playing some serious games). I've never really had great battery life with cm7/miui I've had the best battery life with all the recent samsung gingerbread leaks. I think those are better than cm7. But that's my opinion.

I am in CM7.1 since Sunday. I had very awful battery in start. So I did battery calibration, manually. So I got very decent battery on wifi. But at work I use att data so again my battery life was horrible. But I am seeing improvement since I am using this app called green power to manage my data. Try that.
sent from my cappy rocking gingerbread

viny2cool said:
I am in CM7.1 since Sunday. I had very awful battery in start. So I did battery calibration, manually. So I got very decent battery on wifi. But at work I use att data so again my battery life was horrible. But I am seeing improvement since I am using this app called green power to manage my data. Try that.
sent from my cappy rocking gingerbread
Click to expand...
Click to collapse
If you get good battery on WiFi but not with mobile data, try a different modem. Not only are some modems inherently better on battery, but if you find one that gives you a better signal you should see improvements in battery life as well.

Flashing the Glitch kernel seems to have improved my battery life.
Sent from my SGH-I897 using Tapatalk

Vaanhoot said:
You should try a custom kernel like glitch or Neo to see if that will help. I get awesome battery life in miui which is bases of cm7. I find that neo gives me the best battery life.
Sent from my SGH-I896 running MIUI.
Click to expand...
Click to collapse
Hi, Can you point me to a post that (a) has the Neo Kernel and (b) explains how to flash it on MIUI? I've had MIUI for a couple of months now and battery is to as good as expected. Would love to try to use another Kernel but I sincerely don't know how to do it.
Thanks in advance,
Mauricio

I just love MIUI, no battery problems for me. Gets me through 2 days of moderate usage so I'm a happy camper.
I just wish it had the Audience chip workingg...

MauricioJancic said:
Hi, Can you point me to a post that (a) has the Neo Kernel and (b) explains how to flash it on MIUI? I've had MIUI for a couple of months now and battery is to as good as expected. Would love to try to use another Kernel but I sincerely don't know how to do it.
Thanks in advance,
Mauricio
Click to expand...
Click to collapse
Yeah here is the link: http://forum.xda-developers.com/showthread.php?t=1247213. The download is half way down. Flash in recovery.
Sent from my SGH-I896 running MIUI.

Solid Battery Life w/ Stock Kernel
Hey Everyone,
Juts came to report that I have been getting great battery life using the stock kernel. I would say it is a little better than Serendipty VII Build 2 which I came from. Only issue, and this is something I know is inherently wrong with Cyanogenmod on the Captivate, when you fully charge the device, it only shows it is charged to 98%.
Other than that, all good!

rcllcr said:
Hey Everyone,
Juts came to report that I have been getting great battery life using the stock kernel. I would say it is a little better than Serendipty VII Build 2 which I came from. Only issue, and this is something I know is inherently wrong with Cyanogenmod on the Captivate, when you fully charge the device, it only shows it is charged to 98%.
Other than that, all good!
Click to expand...
Click to collapse
Not true, you need to calibrate your batter!!!!

I get awesome battery using wifi all day long, with auto brightness, music and videos often.
Sent from my SGH-I897 using xda premium

b-eock said:
Not true, you need to calibrate your batter!!!!
Click to expand...
Click to collapse
Oooohhhhh, sweet! I thought this was a common issue. I remember it was during the nightlies.
I am using the following application:
https://market.android.com/details?id=com.nema.batterycalibration&feature=search_result&rdid=com.nema.batterycalibration&rdot=1
I will report back!

viny2cool said:
I am in CM7.1 since Sunday. I had very awful battery in start. So I did battery calibration, manually. So I got very decent battery on wifi. But at work I use att data so again my battery life was horrible. But I am seeing improvement since I am using this app called green power to manage my data. Try that.
sent from my cappy rocking gingerbread
Click to expand...
Click to collapse
Have you seen an improvement in this regards, I am having the same issues, the WiFi is draining my battery slower then my data is.
I have also done the battery calibration and it doesn't seem AS bad... still doesn't appear to be great though.

I am just coming back to this ROM after experiencing battery issues even though Glitch helped a little. I decided to try and tweak some more this go round.
I am experiencing much better results this time. Here are settings and other tweaks or modifications I have in place.
-sync is turned off
-using Launcher Pro with very few widgets (just 3GWatchdog and Power Control)
-auto brightness turn off manually adjust according to need
-gps, wifi, BT, and data turned off when not in use
-wifi notification and location detect off
-installed jk4 modem (may get better results with different modem depending on your area)
-installed Glitch v12 high leakage
-the biggest factor this time I think is UVing on the Freqs that are used while phone sleeps >>>>>100/200mhz (set for the lowest UV setting possible on these that do not result in a sleep death or reboot when phone is put to sleep)

[Q] Best kernel for ICSSGS

Can any one help me to find the best kernel available for Ics rc 4.2 ?
I have tried glitch, semaphore and of course the stock one .
But I face serious issues with battery life . Android os eats plenty of battery and the battery is always dead in 6 hours !
Thank you in advance .

Achal1012 said:
Can any one help me to find the best kernel available for Ics rc 4.2 ?
I have tried glitch, semaphore and of course the stock one .
But I face serious issues with battery life . Android os eats plenty of battery and the battery is always dead in 6 hours !
Thank you in advance .
Click to expand...
Click to collapse
Try devil. If you want long battery life,change governor. For me no problem at all
Sent from Galaxy S ICS

martynas900 said:
Try devil. If you want long battery life,change governor. For me no problem at all
Sent from Galaxy S ICS
Click to expand...
Click to collapse
Which version?
I searched around and people are telling that 14.2 led is best !
And which governor should I use? generally I use ondemand and lagfree without OC.

Achal1012 said:
Which version?
I searched around and people are telling that 14.2 led is best !
And which governor should I use? generally I use ondemand and lagfree without OC.
Click to expand...
Click to collapse
Try using smartassv2 or conservative.

OK.
Thanks.

Achal1012 said:
Which version?
I searched around and people are telling that 14.2 led is best !
And which governor should I use? generally I use ondemand and lagfree without OC.
Click to expand...
Click to collapse
Semaphore 0.9.0 is very very stable. I'm using it on RC 4.2 on SGS-I9000 and it looks like the most fluid at all.Best balance between Battery/performance.

Achal1012 said:
Which version?
I searched around and people are telling that 14.2 led is best !
And which governor should I use? generally I use ondemand and lagfree without OC.
Click to expand...
Click to collapse
rightly said..RC4.2 in itself was quite laggy..atleast in my observation..i flashed semaphore 0.9.0 recently and suddenly its as smooth as anything..i use smartassv2..
battery life looks good..no FC reboots etc so far! wayyy better than stock kernel.

I'm also using ICSSGS RC4.2 with Semaphore 0.9 (smartassV2 governor), and the battery life is quite good.
Bu I observed that data connection and screen consume a lot of battery. With data disabled, and a normal use, my battery lasts about 2 days. But if I enable data, the battery lasts just a day. And if I use it (check facebook, twitter, reader, that-is-to-say, if my screen is on), the battery is empty in the afternoon.
Do you have your data enabled all the time ? I think this is the component that uses the more the battery..

pierral13 said:
I'm also using ICSSGS RC4.2 with Semaphore 0.9 (smartassV2 governor), and the battery life is quite good.
Bu I observed that data connection and screen consume a lot of battery. With data disabled, and a normal use, my battery lasts about 2 days. But if I enable data, the battery lasts just a day. And if I use it (check facebook, twitter, reader, that-is-to-say, if my screen is on), the battery is empty in the afternoon.
Do you have your data enabled all the time ? I think this is the component that uses the more the battery..
Click to expand...
Click to collapse
I have already tried that kernel .
And no data is not enabled all day but for some part of the day.
I know that thing eats battery. But in my battery usage it shows "Android OS" keeps my phone awake. And that is the reason the main reason the battery dies quickly!!

darkmindnaruto said:
Semaphore 0.9.0 is very very stable. I'm using it on RC 4.2 on SGS-I9000 and it looks like the most fluid at all.Best balance between Battery/performance.
Click to expand...
Click to collapse
sudeepm said:
rightly said..RC4.2 in itself was quite laggy..atleast in my observation..i flashed semaphore 0.9.0 recently and suddenly its as smooth as anything..i use smartassv2..
battery life looks good..no FC reboots etc so far! wayyy better than stock kernel.
Click to expand...
Click to collapse
Thank you guys for your replies !
I will once again give a shot to semaphore 0.9.0.

Achal1012 said:
Thank you guys for your replies !
I will once again give a shot to semaphore 0.9.0.
Click to expand...
Click to collapse
+ 1
Sent from my GT-I9000 using Tapatalk

Flashed AOKP beta 2.1 and it works like a charm. For me nothing extra added .
Sent from my GT-I9000 using xda premium

regarding best kernel
undoubtly its semaphore even its working well in 4.0.4 .....extermly smooth

semaphore 0.9.1
Achal1012 said:
Can any one help me to find the best kernel available for Ics rc 4.2 ?
I have tried glitch, semaphore and of course the stock one .
But I face serious issues with battery life . Android os eats plenty of battery and the battery is always dead in 6 hours !
Thank you in advance .
Click to expand...
Click to collapse
You should try semaphore 0.9.1
Now I'm trying it, it has good battery life and for now I don't see any bug
I hope to help you.

best gingerbread rom and kernel with great perfomance and battery life?

please share
is there any custom gingerbread rom with bloatware removed and big free ram? and a kernel with OC/UV? plus great game compability?
how about MIUI?

Have yet to find one to best DjangoMouche 1.2.1 its GB 2.3.4 its customized, with different themes to choose from and a good bunch of performance tweaks. everything has been running smooth.
games run well, things load fast
I'm using Gueste overclock v1.8.1 kernel but thats up to choice. i found it works great between 900 - 1300mhz. but above that its rebooted on me a few times.

You could try Temasek's CM7 Rom with it's own kernel, it has OC/UV and all that things.. Run's pretty smooth and stable but i can recommend you to use GO Launcher EX with an ICS Theme :good:
http://forum.xda-developers.com/showthread.php?t=1421425

necrowakker said:
Have yet to find one to best DjangoMouche 1.2.1 its GB 2.3.4 its customized, with different themes to choose from and a good bunch of performance tweaks. everything has been running smooth.
games run well, things load fast
I'm using Gueste overclock v1.8.1 kernel but thats up to choice. i found it works great between 900 - 1300mhz. but above that its rebooted on me a few times.
Click to expand...
Click to collapse
I agree that DJ is one of the best ROMs...no doubt
but could i ask you why DJ 1.2.1 and not the DJ 1.5RC1....I am using the latest and it is more than a magical dream....out of the stars and heaven....I am curious why you are with an older version....

SREEPRAJAY said:
I agree that DJ is one of the best ROMs...no doubt
but could i ask you why DJ 1.2.1 and not the DJ 1.5RC1....I am using the latest and it is more than a magical dream....out of the stars and heaven
Click to expand...
Click to collapse
+1
Currently on DJ 1.5RC1 and have to say it is truly magical.The feel of performance,smoothness and speed is just incredible.Always try to experiment with other GB roms and always drawn back to DJ ROM.DJ roms provide many choices according to our needs and customization as we like with transformation packs.So have to say this is the best choice i will ever have:cyclops:

Same here, Django Manouche, currently 1.5 RC1, but I am using latest spica kernel ;-)
Sent from my LG-P990 using Tapatalk 2

Hi, this is my first post here. I have been flashing various roms and a few basebands and rils in my quest to get better battery life from my LG Optimus 2x. In the end. Most of what I have done is experimental and I can not say I understand much about versions and combinations. Last night, I read quite a few posts about the Django Manouche rom and downloaded all the three versions of the 1.6, the stock, the Spica and the Gueste.
Flashing led to boot looping on the Spica rom, powering off on the Gueste rom while on the stock 1.6s it ran OK, with some applications not running until I rebooted.
I came from a stock LG rom and was wondering if I need to change the baseband and kernel also, for these to work.
Any advice is welcome. Thanks in advance.

I think these "best rom" threads are forbidden but I'll give my 2 cents anyway, in case I'm wrong:
for me the best rom is Gueste Hybrid revolutions 3.7, is a hybrid between stock Rom and cm7.2, and symbiosis kernel 1.3.
I get great performance, great battery life, great ram management. I can't really complain, I'm so satisfied that I'm not that eager to get ICS (at least not as much as I was before).
LG optimus 2x, rom Gueste Hybrid 3.7

@daas88. Taking your advice, I have flashed the same combination as you, just this morning. I have been very active on the phone since then, so I can't tell right away, if there is any improvement in battery life.
By the way, I continue to be on the 20i baseband.
I shall report back soon.

Temasek
Probably the cleanest install would be Temasek. A very stable CM7 build. It's sort of finished, and offers a great experience. Use it with Temasek's, Spica's or symbi0sis kernel.
I've tried DM and it's great, but this just feels cleaner.
gl!

I have been reading about the Temasek rom. What is your view on its battery consumption? That is something I am focussing on. The stock LG set up lasts for about 9-11 hours on my phone, with full 3G, about 4 hours of wifi usage and about 1-2 hour of music (Neutron music player). I have a battery pack that I carry with me to work, but it is a big bother.
So, basically, to me battery life is top priority. If I can extend it to 12-15 hours, I am home and dry.

I've used Temasek for a long period of time, and though I don't want to go back to gingerbread (currently on Paranoid Android) I do miss the battery life. With Temasek (or stock CM7) I would get about 32 hours of battery life: a day and a night. This with some browsing, playing music checking e-mail.
Overclocking would lose you some of that time, but the toggle2g app would win it back. :good:

carderbee said:
Probably the cleanest install would be Temasek. A very stable CM7 build. It's sort of finished, and offers a great experience. Use it with Temasek's, Spica's or symbi0sis kernel.
I've tried DM and it's great, but this just feels cleaner.
gl!
Click to expand...
Click to collapse
i have cm7 135 from temasek but battery is not so great have bb 218 and ril its the best right now but battery hold max 3h screen on and with 15-17h on time, it sucks, so i want to try dj mouche v20s with bb and rill and hope to get better battery life....
because if a old galaxy s1 can get 1day easy and 4h++ screen on, the fricking lg must get some were neer also......
stanby is **** i find on this phone dont know if its normal but yeah.
i say try dj mango mouch and flash also v20s bb and i think battery will be great and performance i think they are the same

reggiexp said:
because if a old galaxy s1 can get 1day easy and 4h++ screen on, the fricking lg must get some were neer also......
stanby is **** i find on this phone dont know if its normal but yeah.
Click to expand...
Click to collapse
Increased CPU performance, larger screen and stagnated battery technology will do this
As for battery life, I do miss my Nokia 3210! :laugh:

A small update. I charged my phone to 100% yesterday evening at 7 PM. From then on till now, what I observe is that with the phone in standby mode, the battery consumption curve remains almost flat. But the moment I start using some apps, for instance the Number links game for 15-20 minutes, the battery level drops by 10%.
This is with the Gueste Hybrid ROM and the Symbiosis kernel.
Further update: The battery went to 14% and then I charged it. 15 hours. Some improvement. It may be too early to comment, but this set up seems to work superbly when the phone is on standby. When the phone is in use, the consumption seems to be high. Could it be improved by changing the BB or the ril?

carderbee said:
Increased CPU performance, larger screen and stagnated battery technology will do this
As for battery life, I do miss my Nokia 3210! :laugh:
Click to expand...
Click to collapse
The O2x doesn't have a larger screen than the Galaxy S. :cyclops:

my record was 6 hours of screen on time with a cm7 rom and etana kernel with ds battery driver. but now i cant get even 4h screen on time with the same config (only updated versions) :/
maybe my battery is getting worn out...

xilw3r said:
my record was 6 hours of screen on time with a cm7 rom and etana kernel with ds battery driver. but now i cant get even 4h screen on time with the same config (only updated versions) :/
maybe my battery is getting worn out...
Click to expand...
Click to collapse
I'd try a new battery... I can get 8 hours screen on with wifi(depending on usage but screen and wifi on constantly). Temasek and symbi0sis...
Sent from my Optimus 2X using xda premium

Thread Closed, what are the best Rom, Kernel, Theme threads are not allowed on XDA.
Thanks
The-Hulk

Best rom for Battery?

Hey guys. I only want to ask which rom do you think is the bettest for battery life.
Thanks.
Sent from my GT-N7000 using xda premium

My suggestion would be stock gingerbread with speedmod kernel k2-12, i used to get around 4 days with normal use.

That sounds nice. Do you have heavy use of yout phone? Or only deep sleep all the time?
Sent from my GT-N7000 using xda premium

I use it for playing games, little music, calls and messaging. Sometimes connect to Wi-fi. With the same in ICS i get around 2 days.

okay thank you i´ll try. :fingers-crossed:

to set expectations straight, expect thought about 4.5 hours nonstop usage on gb with speedmod kernel.
4 hours on ics with speedmod
alk stock dont expect more then 3 to 3.5 hours.
you only get 2 days if you dont synch, barely use phone and are in good reception area with data switched off always.
Note general tips which can be found in the 10000plus threads about battery drain and how to analyse deepsleep issues
Sent from my GT-N7000 using Tapatalk 2

baz77 said:
to set expectations straight, expect thought about 4.5 hours nonstop usage on gb with speedmod kernel.
4 hours on ics with speedmod
alk stock dont expect more then 3 to 3.5 hours.
you only get 2 days if you dont synch, barely use phone and are in good reception area with data switched off always.
Note general tips which can be found in the 10000plus threads about battery drain and how to analyse deepsleep issues
Sent from my GT-N7000 using Tapatalk 2
Click to expand...
Click to collapse
Agreed. I don't connect to data. And don't sync also. :angel:

Suggestion( i hope )
robotnikz said:
Hey guys. I only want to ask which rom do you think is the bettest for battery life.
Thanks.
Sent from my GT-N7000 using xda premium[/QUOT
I don't know whether you like gingerbread roms or not , but till date the rom with which I got maximum battery backup with modeate to heavy usage was CheckRom Revo HD V6. This rom never lags , best battery life , and good speed .
If you are Gingerbread hater and ICS lover , then you can try Rocketrom v7( very good battery life with the included kernel , and would be much better with Speedmod Kernel (latest version) ). And then you have CleaNote V2.30 ( V3.0 has bluetooth glitches but its faster , if you are bluetooth user i would suggest you to stick with V2.30 ) , I personally love CleaNote because it has stock look and very fluidic :good: and as the tagline says 'You dont want any theme forced down to your throat '. KingDroid are good at speed but many have reported few glitches with it , you may try it if you like ( I dont like KingDroid , its sth personal ). If you hate Samsung's bloatware then we have Cassie's XtraLite rom for your rescue :cyclops:. Its a good rom too .
Well finally to end , I use cyanogenmod 9 and i update it everyday and with each update it gets more fluid and responsive, fast , smooth . i just love cyanogenmod9 ( waiting for cm10 ).
ParanoidAndroid are for ppl who love fun , who want to showoff their phone , the ability of their phone , the sweet hybrid interface of their phone , its for geeks :-0 .
Make a choice or try all of them :good::good:
Click to expand...
Click to collapse

I think if u get deep sleep all time, battery long life every rom

With crash v6 and notecore 3.1 i have 4hours screen on and 15% battery left
Sent from my GT-N7000 using Tapatalk 2

robotnikz said:
Hey guys. I only want to ask which rom do you think is the bettest for battery life.
Thanks.
Sent from my GT-N7000 using xda premium
Click to expand...
Click to collapse
I am using CLASSIC V1+15 toggle with MOD V1 which is ICS 4.0.4, and I also updated kernel to chainfire LRG, which is more stable and smooth, battery life is excellent comparatively to all other ROMs so far.
Which is around 4% drain per hour, I have (facebook, wechat, LINE, mitalk, whatsapp, email, exchange service, maps, mixed chinese input, make your own clock) running and leaving it on idle.
Tony.
Link: http://forum.xda-developers.com/showthread.php?t=1765307

For the past 2 years of beeing a S galaxy user, I've quite looked for best battery life at top performance. Most of the time, battery life is no longer measured in "days" of usage , like we used to do with our Nokia phones. Nowadays, you ten to look at display (screen on) time , CPU profiles, and also connectivity patterns.
You can think of battery life as a factor of the above mentioned, however I think that display time is the most important parameter related to battery life. CPU profiles, connectivity, tend to work only when you have your screen on, and from my experience, you tend not to extend your usage time by more than 10-20%.
So as a conclusion, I did not expect a specific rom / kernel configuration to offer more "screen on" time but to offer a more faster way to do my tasks therefore I did more tasks in almost the same display time.
At the end of the day, it is more important how you USE your device rather than finding a "magical" combination that will increase your battery life.

KID + SpeedMod

+1 for GB (i was using checkrom but i'm sure any gb rom will give similar effects) with Speedmod.
If you make setcpu to 200mhz on screen off, i find it uses almost no power at all when it's on standby.
Like it was on 77% when i went to bed.
Woke up in the morning and it was on 78% (i was like lolwut).
Yay for setcpu.
But seriously though, any GB rom will give you considerably more battery life than any ics rom.

ROM
The best ROM for a battery-HALF ILLUSION and placed on the scale smartas governor.
Try and tell me your impressions.

the best rom for battery
robotnikz said:
Hey guys. I only want to ask which rom do you think is the bettest for battery life.
Thanks.
Sent from my GT-N7000 using xda premium
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the best rom for battery is Criskelo's ICS V9

I bet this is the best custom rom on battery savings, try it you will not regret it. http://forum.xda-developers.com/showthread.php?t=1722038